2 files changed, 32 insertions, 0 deletions
diff --git a/payloads/libpayload/libc/Makefile.inc b/payloads/libpayload/libc/Makefile.inc
index 96d1312f65..bc706ae5a7 100644
--- a/payloads/libpayload/libc/Makefile.inc
+++ b/payloads/libpayload/libc/Makefile.inc
@@ -40,6 +40,10 @@ libc-$(CONFIG_LP_LIBC) += coreboot.c
 libc-$(CONFIG_LP_LIBC) += fmap.c
 libc-$(CONFIG_LP_LIBC) += fpmath.c
 
+ifeq ($(CONFIG_LP_VBOOT_LIB),y)
+libc-$(CONFIG_LP_LIBC) += lp_vboot.c
+endif
+
 ifeq ($(CONFIG_LP_LIBC),y)
 libc-srcs += $(coreboottop)/src/commonlib/bsd/elog.c
 endif
diff --git a/payloads/libpayload/libc/lp_vboot.c b/payloads/libpayload/libc/lp_vboot.c
new file mode 100644
index 0000000000..b7717c7e78
--- /dev/null
+++ b/payloads/libpayload/libc/lp_vboot.c
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: BSD-3-Clause */
+
+#include <libpayload-config.h>
+#include <arch/virtual.h>
+#include <assert.h>
+#include <libpayload.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sysinfo.h>
+#include <vb2_api.h>
+#include <lp_vboot.h>
+
+struct vb2_context *vboot_get_context(void)
+{
+	static struct vb2_context *ctx;
+
+	if (ctx)
+		return ctx;
+
+	die_if(lib_sysinfo.vboot_workbuf == 0, "vboot workbuf pointer is not set\n");
+
+	/* Use the firmware verification workbuf from coreboot. */
+	vb2_error_t rv = vb2api_reinit(phys_to_virt(lib_sysinfo.vboot_workbuf), &ctx);
+
+	die_if(rv, "vboot workbuf could not be initialized, error: %#x\n", rv);
+
+	return ctx;
+}